Pass-type cleaning machine for new energy automobile battery pack control box die casting

Abstract

The utility model discloses a new energy automobile battery pack control box die casting through-type cleaning machine which comprises a cleaning box and a material conveying chain plate, five processing chambers are sequentially arranged in the cleaning box in the same straight line direction, and the five processing chambers are a first-section cleaning chamber, a second-section cleaning chamber, a rinsing chamber, a water cutting chamber and a drying chamber in sequence. Spraying pipe networks are respectively arranged in the first-section cleaning chamber, the second-section cleaning chamber and the rinsing chamber; an air sweeping mechanism is arranged in the water cutting chamber, is positioned above the working section of the material conveying chain plate, and blows air to the material conveying chain plate; a hot air pipe network is arranged in the drying chamber and located below the working section of the material conveying chain plate, and the hot air pipe network blows air towards the material conveying chain plate. The die casting cleaning device has the advantages that the cleaning degree is enhanced by increasing the number of cleaning sections and a scanning type water pre-cutting mode before drying, the follow-up drying efficiency is improved, the drying time is shortened, and the possibility that metal filings and machining liquid are left on the surface of a die casting is reduced.

Description

Technical Field

[0001] This utility model relates to a cleaning device, specifically a continuous cleaning device. Background Technology

[0002] The control box of a new energy vehicle battery pack serves as the carrier for electronic control components. OEMs have imposed requirements on it for lightweight design, high mechanical strength, good sealing, and high cleanliness. Using aluminum / magnesium alloy die-castings is a common method to achieve lightweighting. After the control box die-castings have undergone various machining processes, they still need to be cleaned to remove metal shavings, machining fluids, and moisture from their surface.

[0003] Through-flow cleaning machines are a type of continuous cleaning equipment commonly used for cleaning other die-cast parts. They typically employ a cleaning-then-drying method. However, using existing through-flow cleaning machines to clean and dry battery pack control boxes presents the following problems:

[0004] ① Insufficient cleaning: Existing through-type cleaning machines do not clean the surface of the die-cast parts of the battery pack control box sufficiently, resulting in occasional residues of small amounts of metal shavings and machining fluid on the surface of the die-cast parts;

[0005] ② Limited drying capacity and low drying efficiency: Existing through-type cleaning machines are not effective enough in drying the holes, depressions, and cross ribs on the surface of die-cast parts of battery pack control boxes. Moisture is easily left in these areas, and this residual moisture can easily form stains when it evaporates during subsequent storage, affecting the quality inspection and acceptance of die-cast parts by the OEM. This problem can be solved by extending the drying time, but this will reduce the drying efficiency. Utility Model Content

[0006] This invention provides a cleaning machine suitable for applications requiring higher cleanliness. It enhances the cleaning process by adding cleaning stages, addressing the issues of metal shavings and machining fluid residue. Furthermore, it pre-removes moisture from key areas through a scanning air-blowing water-cutting method before drying, thereby indirectly improving subsequent drying efficiency and shortening drying time. The main technical solutions adopted are as follows:

[0007] A through-type cleaning machine for die-cast parts of battery pack control box of new energy vehicle includes a cleaning box and a material conveying chain plate. The cleaning box has five processing chambers arranged in a straight line. An isolation switch assembly is arranged between two adjacent processing chambers. The working section of the material conveying chain plate is horizontally arranged in the cleaning box and passes through the five processing chambers at the same time.

[0008] The key lies in:

[0009] The five processing chambers are sequentially configured as a first-stage cleaning chamber, a second-stage cleaning chamber, a rinsing chamber, a water-cutting chamber, and a drying chamber;

[0010] The first-stage cleaning chamber, the second-stage cleaning chamber, and the rinsing chamber are each equipped with a spray pipe network;

[0011] The water-cutting chamber is equipped with a sweeping air mechanism, which is located above the working section of the material conveying chain plate and blows air toward the material conveying chain plate.

[0012] The drying chamber is equipped with a hot air duct network, which is located below the working section of the material conveying chain plate and blows air towards the material conveying chain plate.

[0013] Using the above technical solution, the first cleaning chamber uses cleaning fluid to perform preliminary high-pressure cleaning on the surface of the die-cast parts of the battery pack control box, and the second cleaning chamber performs secondary high-pressure cleaning. Compared with the first cleaning, the cleaning degree can be significantly enhanced, further reducing the possibility of residual metal shavings and machining fluid on the surface of the die-cast parts. The sweeping mechanism performs scanning blowing and water cutting in the water cutting chamber, which initially removes and disperses the rinsing water on the surface of the die-cast parts (especially in the holes, depressions, and cross ribs), thereby indirectly improving the drying effect of the subsequent drying chamber and avoiding prolonging the drying time. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram showing the distribution of the five processing chambers;

[0016] Figure 3 This is a schematic diagram of the internal structure of a first-stage cleaning chamber 10a, a second-stage cleaning chamber 10b, and a rinsing chamber 10c.

[0017] Figure 4 This is a schematic diagram showing the cooperation relationship between the disconnect switch assembly 110 and the material conveyor chain plate 900;

[0018] Figure 5 An exploded view of the disconnector switch assembly 110;

[0019] Figure 6 A schematic diagram of the external structure of the water-cutting chamber 10d;

[0020] Figure 7 A three-dimensional structural diagram of the air-sweeping mechanism 130;

[0021] Figure 8 Exploded view of the rolling bar plate 136, the rolling frame 132, and the air blowing assembly 133;

[0022] Figure 9This is a schematic diagram of the air blowing assembly 133. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] like Figures 1 to 9 As shown, a through-type cleaning machine for die-cast parts of battery pack control boxes for new energy vehicles includes a cleaning box 100 and a material conveying chain plate 900.

[0025] The cleaning tank 100 is a rectangular box. The two opposite side walls of the cleaning tank 100 are respectively provided with a material inlet and a material outlet. The material inlet and the material outlet are respectively located on the two side walls along the length of the cleaning tank 100. The working section of the material conveying chain plate 900 is horizontally arranged inside the cleaning tank 100. The working section of the material conveying chain plate 900 enters the cleaning tank 100 from the material inlet and exits the cleaning tank 100 from the material outlet.

[0026] The material conveying chain plate 900 includes a rotary support, two rotary chains 910, and multiple support plates 920. The two rotary chains 910 are arranged opposite each other on the rotary support, and the multiple support plates 920 are connected between the two rotary chains 910. The material conveying chain plate 900 is configured as a support area and a non-support area, which are alternately distributed. The support plates 920 are arranged in the support area, and no support plates 920 are arranged in the non-support area. Multiple support plates 920 are spaced apart in the support area. The die-cast parts of the battery pack control box to be cleaned are placed on top of the support plates 920 in the support area. The rotary support is also equipped with a rotary power device for driving the rotary chains 910 to rotate. This rotary power device is prior art and will not be described in detail here.

[0027] Inside the cleaning tank 100, six isolation switch assemblies 110 are arranged sequentially along the same straight line (specifically, along the length of the cleaning tank 100). The cleaning tank 100 between two adjacent isolation switch assemblies 110 is configured as a processing chamber. The six isolation switch assemblies 110 divide the interior of the cleaning tank 100 into five processing chambers arranged sequentially along the same straight line. The working section of the material conveying chain plate 900 passes through all five processing chambers simultaneously.

[0028] To simplify the structure of the cleaning tank 100, one of the isolation switch assemblies 110 can be configured at the material inlet and the material outlet respectively.

[0029] When the isolation switch assembly 110 is opened, the rotary chain 910 drives the bearing strip 920 and the die-casting part to move to the next processing chamber through the isolation switch assembly 110. When the isolation switch assembly 110 is closed, the two adjacent processing chambers are isolated. Of course, the isolation switch assembly 110 is provided with a clearance notch corresponding to the rotary chain 910.

[0030] The structure of the above-mentioned disconnect switch assembly 110 can refer to existing disconnect switches; alternatively, the following structure can be installed:

[0031] The isolation switch assembly 110 includes a lower fixed baffle 111, a lifting mechanism 112, two opposing and parallel movable baffles 113, and two opposing and parallel upper fixed baffles 114; the lower fixed baffle 111, movable baffles 113, and upper fixed baffles 114 are all parallel to each other; the conveying direction of the material conveying chain plate 900 is perpendicular to the lower fixed baffle 111, movable baffles 113, and upper fixed baffles 114.

[0032] The two upper fixed baffles 114 are respectively fixed to the inner wall of the cleaning tank 100. Specifically, the upper edge of the upper fixed baffle 114 is fixedly connected to the top inner wall of the cleaning tank 100, and the two vertical sides of the upper fixed baffle 114 are respectively fixedly connected to the two opposite side inner walls of the cleaning tank 100. Material conveying windows are opened at the lower part of the two upper fixed baffles 114. The upper fixed baffles 114 outside the two rotary chains 910 can selectively continue to extend downward.

[0033] Two movable baffles 113 are located between two upper fixed baffles 114. Each movable baffle 113 corresponds to one of the upper fixed baffles 114, and the movable baffle 113 is slidably mounted on the corresponding upper fixed baffle 114. The specific sliding assembly relationship between the two can be as follows: two vertical slide rails 115 are fixed to the inner sidewall of the upper fixed baffle 114. The two vertical slide rails 115 are respectively close to the two vertical sides of the corresponding upper fixed baffle 114, and vertical grooves are provided on the vertical slide rails 115 along their length direction. The two vertical sides of the movable baffle 113 correspond one-to-one with the two vertical slide rails 115, and the two vertical sides of the movable baffle 113 extend into the vertical grooves of the corresponding vertical slide rails 115 and slide in cooperation with them.

[0034] The lower fixed baffle 111 is erected inside the cleaning tank 100. Specifically, the lower edge of the lower fixed baffle 111 is fixedly connected to the bottom inner wall of the cleaning tank 100, and the two vertical sides of the lower fixed baffle 111 are respectively fixedly connected to the two opposite lateral inner walls of the cleaning tank 100. The lower fixed baffle 111 is located below the working section of the material conveying chain plate 900, and the lower fixed baffle 111 located outside the two rotary chains 910 can optionally extend upward.

[0035] The movable baffle 113 is provided with a clearance opening for avoiding the two rotating chains 910.

[0036] The fixed part of the lifting mechanism 112 is disposed on the cleaning tank 100. The lifting part of the lifting mechanism 112 is connected to two movable baffles 113, which are arranged vertically. The lifting mechanism 112 is preferably a lifting cylinder. The cylinder barrel of the lifting cylinder is fixed to the outside of the cleaning tank 100, and the piston rod of the lifting cylinder extends downward into the cleaning tank 100 and is fixedly connected to the two movable baffles 113.

[0037] When the lifting mechanism 112 descends, it drives the movable baffle 113 to penetrate from between two adjacent bearing plates 920 (specifically from the non-bearing area) to below the working section of the material conveying chain plate 900 until it covers and blocks the material conveying window. At this time, the lower fixed baffle 111 is located between the two movable baffles 113, and the rotary chain 910 falls at the clearance opening. Of course, the gap between the rotary chain 910 and the clearance opening cannot be completely blocked, but the simultaneous setting of two movable baffles 113 can reduce the possibility of cleaning fluid / cleaning water splashing into adjacent processing chambers. This can also prevent metal shavings and other debris from the previous processing chamber from splashing into the next processing chamber, reducing the possibility of impurity residue.

[0038] The movable baffle 113 has vertical grooves on its two vertical sides for shielding. To shield the gap between the movable baffle 113 and the upper fixed baffle 114, a water-blocking strip 116 is provided on the outer side of the movable baffle 113. The water-blocking strip 116 is horizontally positioned near the upper edge of the movable baffle 113, and its two ends are respectively close to and in contact with the two vertical slide rails 115. A transparent observation window can be provided on the side wall of each processing chamber.

[0039] In order to achieve high cleanliness cleaning of the die-cast parts of the battery pack control box, the five processing chambers mentioned above are configured in sequence as a first-stage cleaning chamber 10a, a second-stage cleaning chamber 10b, a rinsing chamber 10c, a water-cutting chamber 10d, and a drying chamber 10e.

[0040] Spray pipe networks 120 are respectively provided in the first-stage cleaning chamber 10a, the second-stage cleaning chamber 10b, and the rinsing chamber 10c; the spray pipe network 120 includes an upper spray pipe network 121 and a lower spray pipe network 122, the upper spray pipe network 121 is located above the working section of the material conveying chain plate 900, and the lower spray pipe network 122 is located below the working section of the material conveying chain plate 900; the upper spray pipe network 121 and the lower spray pipe network 122 spray liquid toward the material conveying chain plate 900 respectively.

[0041] The first-stage cleaning chamber 10a, the second-stage cleaning chamber 10b, and the rinsing chamber 10c are each connected to a spray circulation system 150. The spray circulation system 150 includes a filter box 151 and a return pump 152. The bottom of the first-stage cleaning chamber 10a, the second-stage cleaning chamber 10b, and the rinsing chamber 10c are respectively provided with return ports. The return ports extend downward through pipes and are connected to the filter box 151. The inlet of the return pump 152 is connected to the clear liquid area of ​​the filter box 151, and the outlet of the return pump 152 is connected to the spray pipe network 120 through a pipe.

[0042] The more specific structure of the spray pipe network 120 is existing technology and will not be described in detail here.

[0043] The water-cutting chamber 10d is equipped with a sweeping air mechanism 130, which is located above the working section of the material conveying chain plate 900 and blows air toward the material conveying chain plate 900.

[0044] One specific embodiment of the air-sweeping mechanism 130 is that the air-sweeping mechanism 130 includes a fixed frame 131, a rolling frame 132, an air-blowing assembly 133, a high-pressure air duct 134, and a push-pull assembly 135;

[0045] The fixed frame 131 is fixed to the inner wall of the water cutting chamber 10d. The rolling frame 132 is mounted on the fixed frame 131. The rolling frame 132 moves horizontally and linearly back and forth on the fixed frame 131. The moving direction of the rolling frame 132 is perpendicular to the running direction of the material conveying chain plate 900.

[0046] The rolling frame 132 is provided with the air blowing assembly 133, which is configured with vertically downward air blowing holes. The air blowing assembly 133 is connected to the high-pressure air pipe 134, and the rolling frame 132 is driven by the push-pull assembly 135.

[0047] Two parallel and facing rolling strips 136 are fixed on the fixed frame 131. The rolling strips 136 are parallel to the moving direction of the rolling frame 132 and are horizontally arranged.

[0048] The rolling frame 132 includes a rolling support frame and two sets of roller assemblies fixed on the rolling support frame. The roller assemblies correspond one-to-one with the rolling strips 136, and the roller assemblies reciprocate linearly along the corresponding rolling strips 136.

[0049] The roller assembly includes an upper roller group 132-2-1 and a lower roller group 132-2-2. The upper roller group 132-2-1 is located above the rolling strip 136 and close to its upper surface, and the lower roller group 132-2-2 is located below the rolling strip 136 and close to its lower surface.

[0050] The upper surface of the rolling bar plate 136 is also fixed with an anti-detachment strip 137, which is arranged along the length direction of the rolling bar plate;

[0051] The upper roller assembly 132-2-1 has an annular anti-detachment groove on its rolling surface. The anti-detachment groove cooperates with the anti-detachment strip 137. The upper roller assembly 132-2-1 is in close contact with the anti-detachment strip 137. The lower roller assembly 132-2-2 is in close contact with the lower surface of the rolling strip plate 136.

[0052] The air blowing assembly 133 includes an air distribution box 133-1 and a high-pressure air inlet connector 133-2. The air distribution box 133-1 is horizontally arranged and located below the rolling support frame and fixedly connected thereto. The bottom of the air distribution box 133-1 is provided with a plurality of air blowing holes. The top of the air distribution box 133-1 is connected to the high-pressure air inlet connector 133-2. The high-pressure air inlet connector 133-2 is connected to the high-pressure air duct 134.

[0053] The top of the water-cutting chamber 10d is provided with a strip-shaped clearance hole, which connects the inside and outside of the water-cutting chamber 10d. The length direction of the strip-shaped clearance hole is parallel to the moving direction of the rolling frame 132. The high-pressure air pipe 134 extends out of the strip-shaped clearance hole from the water-cutting chamber 10d and is connected to a high-pressure air source.

[0054] The push-pull assembly 135 is a push-pull cylinder. The cylinder barrel of the push-pull cylinder is fixed to the outer wall of the water-cutting chamber 10d. The piston rod of the push-pull cylinder is parallel to the moving direction of the rolling frame 132. The piston rod of the push-pull cylinder extends into the water-cutting chamber 10d and is fixedly connected to the rolling frame 132.

[0055] The drying chamber 10e is equipped with a hot air duct network 140, which is located below the working section of the material conveyor chain plate 900 and blows air towards the material conveyor chain plate 900. The hot air duct network 140 is connected to a heating internal circulation system 160. The heating internal circulation system 160 includes a heating box 161 and a circulating fan 162, both of which are located on the top outer wall of the drying chamber 10e. The inlet of the circulating fan 162 is connected to the top of the drying chamber 10e via a duct, and the outlet of the circulating fan 162 is connected to the interior of the heating box 161 via a duct. The heating box 161 is connected to the hot air duct network 140 via a duct. An electric heating element is installed inside the heating box 161.

[0056] The more specific structure of the hot air duct network 140 is existing technology and will not be described in detail here.

[0057] The through-type cleaning machine is also equipped with an electrical control box. The internal wiring, control logic, and control circuit of the electrical control box are mature existing technologies, which will not be described in detail here.

[0058] Beneficial effects: The cleaning machine of this utility model enhances the cleaning process by increasing the number of cleaning stages and using a scanning pre-cutting water method before drying, thereby improving the subsequent drying efficiency, shortening the drying time, and reducing the possibility of residual metal shavings and machining fluid on the surface of die-cast parts.

[0059] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A through-type cleaning machine for die-cast parts of battery pack control boxes for new energy vehicles, comprising a cleaning tank (100) and a material conveying chain plate (900), wherein the cleaning tank (100) is provided with five processing chambers arranged sequentially along the same straight direction, and an isolation switch assembly (110) is arranged between two adjacent processing chambers; the working section of the material conveying chain plate (900) is horizontally arranged in the cleaning tank (100), and the working section of the material conveying chain plate (900) passes through the five processing chambers simultaneously; Its features are: The five processing chambers are sequentially configured as a first-stage cleaning chamber (10a), a second-stage cleaning chamber (10b), a rinsing chamber (10c), a water-cutting chamber (10d), and a drying chamber (10e). Spray pipe networks (120) are respectively provided in the first cleaning chamber (10a), the second cleaning chamber (10b) and the rinsing chamber (10c). The water-cutting chamber (10d) is equipped with a sweeping air mechanism (130), which is located above the working section of the material conveying chain plate (900) and blows air toward the material conveying chain plate (900); The drying chamber (10e) is equipped with a hot air duct network (140), which is located below the working section of the material conveying chain plate (900) and blows air towards the material conveying chain plate (900).

2. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 1, characterized in that: The spray pipe network (120) includes an upper spray pipe network (121) and a lower spray pipe network (122). The upper spray pipe network (121) is located above the working section of the material conveying chain plate (900), and the lower spray pipe network (122) is located below the working section of the material conveying chain plate (900). The upper spray pipe network (121) and the lower spray pipe network (122) spray liquid toward the material conveying chain plate (900) respectively.

3. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 1, characterized in that: The first-stage cleaning chamber (10a), the second-stage cleaning chamber (10b), and the rinsing chamber (10c) are each connected to a spray circulation system (150).

4. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 1, characterized in that: The hot air duct network (140) is connected to a heating internal circulation system (160).

5. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 3, characterized in that: The spray circulation system (150) includes a filter box (151) and a return pump (152). The bottom of the first-stage cleaning chamber (10a), the second-stage cleaning chamber (10b), and the rinsing chamber (10c) are respectively provided with a return port. The return port extends downward through a pipe and is connected to the filter box (151). The inlet of the return pump (152) is connected to the clear liquid area of ​​the filter box (151), and the outlet of the return pump (152) is connected to the spray pipe network (120) through a pipe.

6. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 1, characterized in that: The air sweeping mechanism (130) includes a fixed frame (131), a rolling frame (132), an air blowing assembly (133), a high-pressure air duct (134), and a push-pull assembly (135). The fixed frame (131) is fixed to the inner wall of the water cutting chamber (10d). The fixed frame (131) is equipped with the rolling frame (132). The rolling frame (132) moves horizontally and linearly back and forth on the fixed frame (131). The moving direction of the rolling frame (132) is perpendicular to the running direction of the material conveying chain plate (900). The rolling frame (132) is provided with the air blowing assembly (133), which is configured with vertically downward air blowing holes. The air blowing assembly (133) is connected to the high-pressure air pipe (134), and the rolling frame (132) is driven by the push-pull assembly (135).

7. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 6, characterized in that: Two parallel and facing rolling bars (136) are fixed on the fixed frame (131). The rolling bars (136) are parallel to the moving direction of the rolling frame (132) and are horizontally arranged. The rolling frame (132) includes a rolling support frame and two sets of roller assemblies fixed on the rolling support frame. The roller assemblies correspond one-to-one with the rolling strips (136), and the roller assemblies reciprocate along the corresponding rolling strips (136) in a straight line. The roller assembly includes an upper roller group (132-2-1) and a lower roller group (132-2-2). The upper roller group (132-2-1) is located above the rolling strip plate (136) and close to its upper surface, and the lower roller group (132-2-2) is located below the rolling strip plate (136) and close to its lower surface. The upper surface of the rolling bar plate (136) is also fixed with an anti-detachment clip (137), which is arranged along the length direction of the rolling bar plate; The upper roller assembly (132-2-1) has an annular anti-detachment groove on its rolling surface. The anti-detachment groove cooperates with the anti-detachment strip (137). The upper roller assembly (132-2-1) is in close contact with the anti-detachment strip (137), and the lower roller assembly (132-2-2) is in close contact with the lower surface of the rolling strip plate (136).

8. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 7, characterized in that: The air blowing assembly (133) includes an air distribution box (133-1) and a high-pressure air inlet connector (133-2). The air distribution box (133-1) is horizontally arranged and located below the rolling support frame and fixedly connected thereto. The bottom of the air distribution box (133-1) is provided with a plurality of air blowing holes. The top of the air distribution box (133-1) is connected to the high-pressure air inlet connector (133-2). The high-pressure air inlet connector (133-2) is connected to the high-pressure air duct (134). The top of the water-cutting chamber (10d) is provided with a strip-shaped clearance hole, which connects the inside and outside of the water-cutting chamber (10d). The length direction of the strip-shaped clearance hole is parallel to the moving direction of the rolling frame (132). The high-pressure air pipe (134) extends out of the water-cutting chamber (10d) from the strip-shaped clearance hole and is connected to a high-pressure air source. The push-pull assembly (135) is a push-pull cylinder. The cylinder barrel of the push-pull cylinder is fixed to the outer wall of the water-cutting chamber (10d). The piston rod of the push-pull cylinder is parallel to the moving direction of the rolling frame (132). The piston rod of the push-pull cylinder extends into the water-cutting chamber (10d) and is fixedly connected to the rolling frame (132).

9. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to claim 4, characterized in that: The heating internal circulation system (160) includes a heating box (161) and a circulating fan (162), both of which are located on the top outer wall of the drying chamber (10e); The inlet of the circulating fan (162) is connected to the top of the drying chamber (10e) through a duct, and the outlet of the circulating fan (162) is connected to the interior of the heating box (161) through a duct. The heating box (161) is connected to the hot air duct network (140) through a duct.

10. The through-type cleaning machine for die-cast parts of new energy vehicle battery pack control boxes according to any one of claims 1, 2, 3, 4, 5, 6, 7 or 9, characterized in that: The two opposite side walls of the cleaning tank (100) are respectively provided with a material inlet and a material outlet; the working section of the material conveying chain plate (900) enters the cleaning tank (100) from the material inlet and exits the cleaning tank (100) from the material outlet. The material inlet and material outlet are respectively equipped with the disconnect switch assembly (110).

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